feat(agenda): handle multiple VC per lecture

[ShahabFallah]

Closes #391 - LectureScreen.tsx
add one new dependecy --> Swiper
because I could find any other same UI component representing same functionality in the code
https://www.npmjs.com/package/react-native-swiper?activeTab=versions
the developers are active and it works for both Android and IOS

other changes to be consider :
because we have couple of variable with name VirtualClassrooms and it was a little bit confusing , we have :

• associatedVirtualClassrooms ---> it is the videos lectures of that specific LectureCard
• virtualClassroomsQuery ---> like the exact name in CourseVirtualClassroomScreen that retrieve all of the video lectures of corresponding course
• and the final one virtualClassroomRet : which is the video retrieved from the Query

before the names were a little bit confusing to work on.